which is going to cause air pollution, water pollution,

Rich soil yields good crops.

Abiotic stress is the drought.

Plants are nourished by earth.

The town had a vermiculite mine in it.

To change the community you have to change the composition of the soil.

I collect soil samples.

America's massive Ogallala aquifer has fallen so low that many farmers have had to return to less productive dry land farming.

Should aluminum be in the soil and the rain?

At this rate, all fish populations are projected to collapse by 2048.

Worms are sometimes beneficial to soil.

The soil retained richness.

Plants take in water from the soil.

But what are the conditions that make it possible?

Water resources are running low.

I said, What can you build in this place?

Hey, cheeky bum. Here's your pressie.

Offering what?

We are after all organic creatures, and the culture of the school is absolutely essential.

The rain washed away the soil.

And these are not esoteric limits.

And as an economist, we can also look at that side of the story. These are people who are productive agents in the economy.

Just smart people moving bits. Different rules.

You can take virtually any parameter that matters for human well being nitrous oxide, methane, deforestation, overfishing

They put 25,000 sheep in one flock, really mimicking nature now with planned grazing, and they have documented a 50 percent increase in the production of the land in the first year.

That soil is rich in humus.

You can't get a tree to grow on bad soil.

Once or twice a year I'd go an' work at 'em a bit prune 'em an' dig about th' roots.

And this is the concept for the top of the city.

curiosity without assumptions.

The global economy grows exponentially, at about 3 a year, consuming increasing amounts of non renewable fuels, minerals and metals, as well as renewable resources

We brought you a souvenir.

A souvenir from the Coliseum?

Did you bring us anything?

A souvenir

A souvenir, sort of

A souvenir for Patty.

We got you stuff.

She gets the women to plant new trees and water them, drop by drop.

Large scale use of pesticides and fertilizers raised concerns of soil pollution.

I'm gonna have to try and enjoy it even more.

Souvenir, señor?

The mycelium infuses all landscapes, it holds soils together, it's extremely tenacious.

I did some quick calculations.

I can't believe it.